Strange effect with i915 backlight controller

[Takashi Iwai]

At Wed, 16 Nov 2011 13:58:57 +0100,
Daniel Mack wrote:
> 
> On 11/14/2011 11:39 AM, Takashi Iwai wrote:
> > OK, then perhaps a better fix is to change the check to be equivalent
> > with pineview, as you mentioned in the original post.  The handling of
> > bit 0 for old chips was lost during the refactoring of backlight code
> > since 2.6.37.
> > 
> > Does the patch below work for you?
> > 
> > The only concern by this fix is that it changes the max value.  If
> > apps expect some certain (e.g. recorded) value, it may screw up.  But
> > I don't expect this would happen with sane apps.
> 
> Works perfectly - let's ship it :)

OK, now the patch was resent to intel-gfx with proper tags.


thanks,

Takashi